31031020010 has 16 divisors (see below), whose sum is σ = 55901529216. Its totient is φ = 12402253968.

The previous prime is 31031020003. The next prime is 31031020019. The reversal of 31031020010 is 1002013013.

It is a super-2 number, since 2×31031020010² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31031019973 and 31031020000.

It is not an unprimeable number, because it can be changed into a prime (31031020019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256414 + ... + 1280873.

It is an arithmetic number, because the mean of its divisors is an integer number (3493845576).

Almost surely, 2^31031020010 is an apocalyptic number.

31031020010 is a deficient number, since it is larger than the sum of its proper divisors (24870509206).

31031020010 is a wasteful number, since it uses less digits than its factorization.

31031020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2538517.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 31031020010 its reverse (1002013013), we get a palindrome (32033033023).

The spelling of 31031020010 in words is "thirty-one billion, thirty-one million, twenty thousand, ten".